S-Flex 90A Glow in the Dark

Spectrum is a European company based in Poland that focuses on the production of consumables for FDM / FFF 3D printers under the Spectrum Filaments brand.

Within its wide range of filaments, there is the Spectrum S-Flex 90A Glow in the dark. This material is framed between flexible filaments and has a Shore hardness of 90A. This hardness allows flexible items to be printed in 3D much more easily than with other flexible materials. Its ease of printing is also due to its excellent adhesion to the printing base, as well as its high adhesion between layers.

Among its characteristics, its elongation at break of 500% is worth mentioning. In addition, this filament is resistant to a large number of common oils and chemicals, as well as to weak and diluted acids and bases.

Spectrum S-Flex 90A Glow in the dark also features good UV resistance and high resistance to ageing.

However, the most striking feature of this filament is undoubtedly its phosphorescence, as this property is not common in flexible filaments.

Phosphorescence is a phenomenon by which certain substances absorb energy and store it; emitting it later in the form of radiation. Pieces printed with the Spectrum S-Flex 90A Glow in the dark filament emit a luminous green glow in the dark after having been placed under a light source beforehand.

In order to obtain a high glow in the printed pieces, they should be exposed to a light source for a few minutes. Afterwards, the piece will glow in the dark with strength.

Video 1: Spectrum S-Flex 90A Glow in the dark flexible filament. Source: Spectrum.

Thanks to the properties of this material, the Spectrum S-Flex 90A Glow in the dark filament is an ideal material for making joints or sealing elements that must be resistant to fluids, guaranteeing the best possible watertightness. In addition, it is a very useful material for applications that require energy absorption such as bumpers or shock absorbers, protective covers, cases, etc. The glow in the dark also makes it a very interesting material for decorative applications.

Each Spectrum S-Flex 90A Glow in the dark filament coil is packaged in the original Spectrum Filaments packaging.

Image 1: Packaging of the S_Flex 90A Glow in the dark filament. Source: Spectrum Filaments.

Inside is the filament coil, vacuum packed with a desiccant bag, so that the material maintains its properties intact. For vacuum packaging, aluminium foil with a ZIP seal is used, allowing the user to store the filament after use and prevent it from absorbing moisture. It also includes a user's manual to get the most out of the material.

The Spectrum S-Flex 90A Glow in the dark filament is a flexible filament that is easy to print with almost any 3D FDM printer and its phosphorescence extends the possible applications of this material.